US10306646B2 - Method for device-to-device communication, base station and user equipment - Google Patents

Method for device-to-device communication, base station and user equipment Download PDF

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US10306646B2
US10306646B2 US15/309,072 US201515309072A US10306646B2 US 10306646 B2 US10306646 B2 US 10306646B2 US 201515309072 A US201515309072 A US 201515309072A US 10306646 B2 US10306646 B2 US 10306646B2
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subframes
subframe
prbs
transmission
transmissions
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US20170079025A1 (en
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Qi Jiang
Renmao Liu
Bo Li
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Sharp Corp
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Sharp Corp
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    • H04W72/048—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/042—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1215—Wireless traffic scheduling for collaboration of different radio technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/715—Interference-related aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/715—Interference-related aspects
    • H04B2001/7152—Interference-related aspects with means for suppressing interference

Definitions

  • the present disclosure relates to wireless communications, and more particularly, to a method for Device-to-Device (D2D) communication, a base station and a User Equipment (UE).
  • D2D Device-to-Device
  • UE User Equipment
  • Modern wireless mobile communication systems have two significant characteristics.
  • the first one is broadband and high rate.
  • the fourth generation wireless mobile communication systems have up to 100 MHz of bandwidth and up to 1 Gbps of downlink rate.
  • the second one is mobile interconnecting, which enables emerging services such as mobile internet, mobile video on demand, online navigation, and the like.
  • These two characteristics have higher requirements on the wireless mobile communication technology, including ultrahigh rate wireless transmission, inter-area interference suppression, reliable signal transmission while moving, distributed/centered signal processing, etc.
  • 4G enhanced fourth generation
  • 5G fifth generation
  • the enhanced fourth generation wireless mobile communication systems have generally the following development requirements:
  • the 3 rd Generation Partner Project (3GPP) organization has discussed and accepted Device-to-Device (D2D) communication technique as a key technique in the enhanced fourth generation wireless mobile communication systems.
  • D2D Device-to-Device
  • the D2D technique allows local communications or peer-to-peer communications, without access to core networks. With transmissions based on the D2D technique, loads on base stations can be effectively reduced and life time of mobile terminal batteries can be effectively prolonged.
  • D2D UEs UEs for D2D transmissions
  • scenarios for the D2D UEs can be divided into network coverage, no network coverage and partial network coverage. In the partial network coverage scenario, there are D2D UEs with network coverage and D2D UEs without network coverage.
  • 3GPP has decided to use Physical Downlink Control Channel (PDCCH) and Enhanced PDCCH (EPDCCH) for transmitting D2D grant information for D2D Scheduling Assignment (SA) and D2D data.
  • PDCH Physical Downlink Control Channel
  • EPDCCH Enhanced PDCCH
  • SA Scheduling Assignment
  • SA Scheduling Assignment
  • the present disclosure provides a resource configuration method for transmission of D2D SA and D2D data for a D2D UE based on Long Term Evolution (LTE) and LTE-Advanced (LTE-A) networks.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • the present disclosure also provides a method for receiving such resource configuration. Further, the present disclosure provides a method for obtaining time-frequency positions for transmission of D2D SA and D2D data based on frequency hopping predefined at the base station side.
  • a method performed by a base station comprises: configuring resources required for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions based on radio resource occupations by cellular network and D2D communications within coverage of the base station; and transmitting resource configuration information for the D2D SA and/or D2D data transmissions.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes.
  • the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • a method performed by a User Equipment comprises: receiving resource configuration information for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions; and configuring positions of subframes where Physical Resource Blocks (PRBs) for the D2D SA and/or D2D data transmissions are located, based on the resource configuration information.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • PRBs Physical Resource Blocks
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes.
  • the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • a method performed by a User Equipment comprises: receiving information including a predefined frequency hopping scheme from an eNB; and obtaining positions of Physical Resource Blocks (PRBs) occupied by a Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data in frequency domain based on the predefined frequency hopping scheme included in the received information.
  • PRBs Physical Resource Blocks
  • SA Scheduling Assignment
  • the predefined frequency hopping scheme indicates that PRBs for transmission of the D2D SA and/or D2D data between two time slots within one subframe are frequency hopped in accordance with a frequency hopping scheme for Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • the predefined frequency hopping scheme indicates that PRBs for transmission of the D2D SA and/or D2D data between two adjacent subframes in a set of subframes allocated for D2D transmission are frequency hopped in accordance with a fixed scheme.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from D2D scheduling information in Physical Downlink Control Channel (PDCCH) or Enhanced PDCCH (EPDCCH) from a base station, and positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • PDCH Physical Downlink Control Channel
  • EPDCCH Enhanced PDCCH
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity of a D2D group to which the UE belongs and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity specific to the UE and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from a physical identity of a cell serving the UE and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity specific to D2D transmission and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a base station comprising: a configuration unit configured to configure resources required for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions based on radio resource occupations by cellular network and D2D communications within coverage of the base station; and a transmission unit configured to transmit resource configuration information for the D2D SA and/or D2D data transmissions.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes.
  • the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • a User Equipment comprises: a receiving unit configured to receive resource configuration information for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions; and a configuration unit configured to configure positions of subframes where Physical Resource Blocks (PRBs) for the D2D SA and/or D2D data transmissions are located, based on the resource configuration information.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • PRBs Physical Resource Blocks
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes.
  • the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • a User Equipment comprises: a receiving unit configured to receive information including a predefined frequency hopping scheme from an eNB; and a configuration unit configured to obtain positions of Physical Resource Blocks (PRBs) occupied by a Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data in frequency domain based on the predefined frequency hopping scheme included in the received information.
  • PRBs Physical Resource Blocks
  • SA Scheduling Assignment
  • the predefined frequency hopping scheme indicates that PRBs for transmission of the D2D SA and/or D2D data between two time slots within one subframe are frequency hopped in accordance with a frequency hopping scheme for Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • the predefined frequency hopping scheme indicates that PRBs for transmission of the D2D SA and/or D2D data between two adjacent subframes in a set of subframes allocated for D2D transmission are frequency hopped in accordance with a fixed scheme.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from D2D scheduling information in Physical Downlink Control Channel (PDCCH) or Enhanced PDCCH (EPDCCH) from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • PDCH Physical Downlink Control Channel
  • EPDCCH Enhanced PDCCH
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity of a D2D group to which the UE belongs and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity specific to the UE and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from a physical identity of a cell serving the UE and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity specific to D2D transmission and D2D scheduling information in PDCCH or EPDCCH from a base station, and positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • FIG. 1 is a flowchart illustrating a method in a base station for transmitting resource configuration information for D2D SA and/or D2D data transmissions according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart illustrating a method in a UE for configuration D2D transmission based on resource configuration information for D2D SA and/or D2D data transmissions from a base station according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart illustrating a method in a UE for configuring D2D transmissions based on information predefined at a network side according to an embodiment of the present disclosure
  • FIG. 4 is a block diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 5 is a block diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 1 is a flowchart illustrating a method in a base station for transmitting resource configuration information for D2D SA and/or D2D data transmissions according to an embodiment of the present disclosure. As shown in FIG. 1 , the method starts with step S 110 .
  • the base station configures resources required for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions based on radio resource occupations by cellular network and D2D communications within coverage of the base station.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • the base station transmits resource configuration information for the D2D SA and/or D2D data transmissions.
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes. More preferably, the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • the resource configuration information may be included in bits in an existing DCI format transmitted over PDCCH or EPDCCH.
  • the transmitted DCI format is Format 0
  • unused bits in the D2D Grant can be used for transmission.
  • some or all of the bits in New Data Indicator, Transmit Power Control (TPC) Command, Cyclic Shift, Uplink (UL) Index, Downlink Assignment Index, Channel State Information (CSI) Request, Sounding Reference Signal (SRS) Request, or Resource Allocation Type can be used for transmission of the resource configuration information.
  • the resource configuration information can be included in bits in a newly designed DCI format transmitted over PDCCH or EPDCCH.
  • the resource configuration information can be included in a System Information Broadcast (SIB) block, which can be an existing SIB or a newly designed SIB.
  • SIB System Information Broadcast
  • the resource configuration information can be included in a UE-specific Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the UE-specific RRC signaling may be e.g., RadioResourceConfigDedicated Information Element (IE).
  • IE RadioResourceConfigDedicated Information Element
  • the UE-specific RRC signaling can be an RRCConnectionSetup message, or other UE-specific RRC signaling.
  • FIG. 2 is a flowchart illustrating a method in a UE for configuration D2D transmission based on resource configuration information for D2D SA and/or D2D data transmissions from a base station according to an embodiment of the present disclosure. As shown in FIG. 2 , the method starts with step S 210 .
  • the UE receives resource configuration information for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes. More preferably, the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • the UE configures positions of subframes where Physical Resource Blocks (PRBs) for the D2D SA and/or D2D data transmissions are located, based on the resource configuration information.
  • PRBs Physical Resource Blocks
  • FIG. 3 is a flowchart illustrating a method in a UE for configuring D2D transmissions based on information predefined at a network side according to an embodiment of the present disclosure. As shown in FIG. 3 , the method starts with step S 310 .
  • the UE receives information including a predefined frequency hopping scheme.
  • the UE obtains positions of Physical Resource Blocks (PRBs) occupied by a Device-to-Device (D2D) Scheduling Assignment (SA) in frequency domain based on the predefined frequency hopping scheme included in the received information.
  • the predefined frequency hopping scheme may include frequency hopping between time slots within one subframe of the PRBs occupied by the D2D SA in the frequency domain and frequency hopping between subframes in a set of subframes.
  • the frequency hopping between time slots within one subframe is a frequency hopping scheme for Physical Uplink Shared Channel (PUSCH) transmission.
  • PUSCH Physical Uplink Shared Channel
  • a start position of PRBs for transmission of the D2D SA in a first subframe in the set of subframes is generated from D2D scheduling information in Physical Downlink Control Channel (PDCCH) or Enhanced PDCCH (EPDCCH) from a base station.
  • Positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity of a D2D group to which the UE belongs and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity specific to the UE and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from a physical identity of a cell serving the UE and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA and/or D2D data in a first subframe in the set of subframes is generated from an identity specific to D2D transmission and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA and/or D2D data in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • FIG. 4 is a block diagram of a base station according to an embodiment of the present disclosure. As shown in FIG. 4 , the base station 40 includes a configuration unit 410 and a transmission unit 420 .
  • the configuration unit 410 is configured to configure resources required for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions based on radio resource occupations by cellular network and D2D communications within coverage of the base station.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • the transmission unit 420 is configured to transmit resource configuration information for the D2D SA and/or D2D data transmissions.
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes. More preferably, the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • FIG. 5 is a block diagram of a UE according to an embodiment of the present disclosure. As shown in FIG. 5 , the UE 50 includes a receiving unit 510 and a configuration unit 520 .
  • the receiving unit 510 is configured to receive resource configuration information for Device-to-Device (D2D) Scheduling Assignment (SA) and/or D2D data transmissions.
  • D2D Device-to-Device
  • SA Scheduling Assignment
  • the configuration unit 520 is configured to configure positions of subframes where Physical Resource Blocks (PRBs) for the D2D SA and/or D2D data transmissions are located, based on the resource configuration information.
  • PRBs Physical Resource Blocks
  • the resource configuration information indicates the number of subframes in a set of subframes allocated for D2D transmission and/or an interval between every two adjacent subframes in the set of subframes. More preferably, the subframes allocated for the D2D SA and/or D2D data in the set of subframes are equally spaced in time domain.
  • the receiving unit 510 can further be configured to receive information including a predefined frequency hopping scheme.
  • the configuration unit 520 can further be configured to obtain positions of Physical Resource Blocks (PRBs) occupied by a Device-to-Device (D2D) Scheduling Assignment (SA) in frequency domain based on the predefined frequency hopping scheme included in the received information.
  • the predefined frequency hopping scheme may indicate that PRBs for transmission of the D2D SA between two time slots within one subframe are frequency hopped in accordance with a frequency hopping scheme for Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • the predefined frequency hopping scheme may indicate that PRBs for transmission of the D2D SA between two adjacent subframes in a set of subframes allocated for D2D transmission are frequency hopped in accordance with a fixed scheme.
  • the predefined frequency hopping scheme may include frequency hopping between time slots within one subframe of the PRBs occupied by the D2D SA in the frequency domain and frequency hopping between subframes in a set of subframes.
  • the frequency hopping between time slots within one subframe is a frequency hopping scheme for Physical Uplink Shared Channel (PUSCH) transmission.
  • PUSCH Physical Uplink Shared Channel
  • a start position of PRBs for transmission of the D2D SA in a first subframe in the set of subframes is generated from D2D scheduling information in Physical Downlink Control Channel (PDCCH) or Enhanced PDCCH (EPDCCH) from a base station.
  • Positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA in a first subframe in the set of subframes is generated from an identity of a D2D group to which the UE belongs and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA in a first subframe in the set of subframes is generated from an identity specific to the UE and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA in a first subframe in the set of subframes is generated from a physical identity of a cell serving the UE and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • a start position of PRBs for transmission of the D2D SA in a first subframe in the set of subframes is generated from an identity specific to D2D transmission and D2D scheduling information in PDCCH or EPDCCH from a base station.
  • Positions of PRBs for transmission of the D2D SA in subsequent subframes in the set of subframes are generated from the start position of PRBs and subframe numbers.
  • the above embodiments of the present disclosure can be implemented in software, hardware or any combination thereof.
  • the internal components of the base station and the UE in the above embodiments can be implemented using various devices including, but not limited to, analog circuit device, digital circuit device, Digital Signal Processing (DSP) circuit, programmable processor, Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), Programmable Logic Device (CPLD) and the like.
  • DSP Digital Signal Processing
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • CPLD Programmable Logic Device
  • the term “base station” means a mobile communication data and control exchange center with a large transmit power and a wide coverage area and including functions such as resource allocation/scheduling, data reception/transmission and the like.
  • the term “user equipment” means a user mobile terminal, including e.g., a mobile phone, a notebook computer and other terminal devices that can wirelessly communicate with a base station or and micro base station.
  • a computer program product can be a product having a computer readable medium with computer program logics coded thereon.
  • the computer program logics When executed on a computing device, the computer program logics provide operations for implementing the above solutions according to the present disclosure.
  • the computer program logics When executed on at least one processor in a computing system, the computer program logics cause the processor to perform the operations (methods) according to the embodiments of the present disclosure.
  • This arrangement of the present disclosure is typically provided as software, codes and/or other data structures provided or coded on a computer readable medium (such as an optical medium, e.g., CD-ROM, a floppy disk or a hard disk), or firmware or micro codes on other mediums (such as one or more ROMs, RAMs or PROM chips), or downloadable software images or shared databases in one or more modules.
  • a computer readable medium such as an optical medium, e.g., CD-ROM, a floppy disk or a hard disk
  • firmware or micro codes on other mediums such as one or more ROMs, RAMs or PROM chips
  • the software, firmware or arrangement can be installed in a computing device to cause one or more processors in the computing device to perform the solutions according to the embodiments of the present disclosure.

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  • Computer Networks & Wireless Communication (AREA)
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US15/309,072 2014-05-07 2015-05-06 Method for device-to-device communication, base station and user equipment Active 2035-06-29 US10306646B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201410200178 2014-05-07
CN201410200178.0A CN105101414B (zh) 2014-05-07 2014-05-07 用户设备及其方法
CN201410200178.0 2014-05-07
PCT/CN2015/078396 WO2015169227A1 (fr) 2014-05-07 2015-05-06 Procédé destiné à des communications entre dispositifs, station de base et équipement utilisateur

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JP2017517967A (ja) 2017-06-29
CN105101414A (zh) 2015-11-25
US20170079025A1 (en) 2017-03-16
CN105101414B (zh) 2021-02-09
WO2015169227A1 (fr) 2015-11-12
JP6518267B2 (ja) 2019-05-22

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